当前位置:文档之家› CO2车用热泵空调系统技术研发及性能提升

CO2车用热泵空调系统技术研发及性能提升


关键词 车用热泵;制热性测试;CO2 制冷剂;跨临界循环;电动汽车
中图分类号:TQ051. 5;TU831. 3;U469. 72
文献标识码: A
Technology Development and Performance Improvement of CO2 Automobile Heat Pump Air⁃conditioning System
Abstract This study develops a set of CO2 transcritical automobile heat pump air⁃conditioning systems, which adopts a CO2 vehicle elec⁃ trical compressor, micro⁃channel heat exchanger, electronic expansion valve and other key components. This is to overcome technical challenges brought by CO2 automobile′ s heat pump air⁃conditioning system such as high pressure and high exhaust temperature. The effects of the amount of system refrigerant charge on the system performance, circulation characteristics, and the expansion valve opening of the CO2 automobile heat pump air⁃conditioning are studied in this paper. In addition, this paper proposes a series of indoor heat ex⁃ changers to increase the heat transfer capacity of the high⁃pressure side in the heat pump mode, and experimentally verifies the effect of this method on automobile heat pump air⁃conditioning system performance. Results show that compared with the single gas cooler, the au⁃ tomobile heat pump air⁃conditioning system with series gas coolers achieves an increase in heating capacity of 17% - 31% and coefficient of performance( COPh ) of 20% - 33% . The system can generate 40������ 4 ℃ gas cooler outlet air and COPh = 1������ 8 under the environment of - 20 ℃ fresh air mode. Therefore, the developed CO2 automobile heat pump air⁃conditioning system can satisfy passenger comfort and ve⁃ hicle load demand under a low⁃temperature environment for electric vehicles and has a very significant advantage in heating energy effi⁃ ciency. Keywords automotive heat pump; heating performance experiment; CO2 refrigerant; transcritical cycle; electric vehicle
CO2 车用热泵空调系统技术研发及性能提升
王丹东1 陈江平1,2 俞彬彬1 施骏业1,2 李万勇1 蒋甫政1
(1 上海交通大学制冷与低温工程研究所 上海 200240; 2 上海高效冷却系统工程技术中心 上海 200240)
摘 要 本文研发了一套 CO2 跨临界车用热泵空调系统,该系统采用 CO2 车用电动压缩机、微通道换热器、电子膨胀阀等关键 部件,克服了 CO2 车用热泵空调系统高压和高排气温度的技术挑战。 实验研究了系统充注量对 CO2 车用热泵空调系统性能、循 环特征及膨胀阀开度的影响。 提出在热泵模式下将室内换热器串联来提高高压侧的换热能力,并实验验证了该方法对车用热泵
Wang Dandong1 Chen Jiangping1,2 Yu Binbin1 Shi Junye1,2 Li Wanyong1 Jiang Fuzheng1
(1. Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai, 200240, China; 2. Shanghai High Efficient Cooling System Research Center, Shanghai, 200240, China)
空调系统性能的提升作用。 结果表明:相比于单一气冷器,采用串联气冷器的车用热泵空调系统的制热量和 COPh 分别提升了 17% ~ 31% 和 20% ~ 33% ;该系统在 - 20 ℃ 全新风环境下,出风温度可达 40������ 4 ℃ ,COPh 为 1������ 8。 因此该系统能够满足电动汽车 在低温环境下的乘客舒适性和整车负荷需求,且在制热能效方面优势显著。
第 39 卷 第 5 期 2018 年 10 月
CO2 车用热泵空调系统技术研发及性能提升
Vol. 39, No. 5 October, 2018
文章编号:0253 - 4339(2018) 05 - 0047 - 06 doi:10������ 3969 / j������ issn������ 0253 - 4339������ 2018������ 05������ 047
相关主题